Drawing roll mechanism



Sept. 27, 1932. H. E. WHITE ET AL DRAWING ROLL MECHANISM Filed Feb. 8,1930 3 Sheets-Sheet l m- 27, 1932- H. E. WHITE ET AL DRAWING ROLL MECHANI SM Filed Feb. 8, 1930 3 Sheets-Sheet 2 gnaw/tow Sept. 27, 1932. H. E.WHITE ET AL DRAWING ROLL MECHANISM Filed Feb. 8, 1930 3 Sheets-Sheet 3erly engage and P t nted Sept .27 1

QFFIcE.

3 3 .333? W 51 G E ELF FP 7 O MIGHIGAN .c 1 .-scanner rewe w t OHIO. s Nes rO ravs Or erase Or O a-la CORPORATION Am an mamm y a 9 9- Serial rmass- In drawing strips of difierent widths and,

gauges through cleaning and galvanizing ap paratus, for economys sake itis desirable that these strips be'passing simultaneouslythrough thevarious baths, etc., but this creates difficulty because the drawingrolls as ordi narily constructed, if spaced apart by the strips that arerelatively thick, will not prop: carry along the thinner strips.

One of the objects of the present invention is to provide a simple,novel and effective drawing mechanism that will accommodate itself tostrips of various widths thick.- nesses and will properly operate'onthem, even when they are simultaneously passing through the apparatus. 7

An embodiment of the invention that is at present .consi dered thepreferableone is illustrated in the accompanying draw ngs,-where- 1n:

igure 1 is a front elevation of the drawing mechanism.

Figure 2 is an end elevation of the same Figure 3 is a view in elevationof the oppo site end to that shown in Figure 2.

Figure 4 is a vertical cross sectional view on the line H of Figure 1.

Figures 5 and 6 are respectively sectional lines 5-5 and 6-6 of Figure3.

views on the Figure 7 is a detailsectional view through one of thepositioning rollers and its mount.

In the embodiment disclosed, a suitable base 8 is employed mounted onsupporting beams 9 and carrying upstanding head plates 10 and 11. Inthese head plates is suitably journaled van upper drawing roll 12, whichfor the purpose of distinguishment"i s termed the main roll.

Beneath the roll 12 is asectional drawing roll 13 coacting with the mainroll 12. This lower roll includes a central shaft 14: havingdiametrically opposite wings or flanges 15, forming ;keys. "Located onthe shaft 14 and located end to end thereon are drive collars 16individually movable laterally of the shaft and having internal keyways17 that receive the lreys 15. The width of the keys 15 is less than thedepth of the keyways so as to permit the said lateral play of the drivecollars. Surrounding said drive collars 16 are sleeves constituting rollshell sections 18 that are also laterally movable with respect toth eshaft and are keyed to the collars 16. To that end, said collars areprovided in their peripheries with keyways 19 that are disposed at rightangles to the keyways 17 and in these keyways 19 are'internal ribs 20formed on the shell sections 18. It will be noted particularly byreference to Figure 4 that the keys 20 are of less width than the depthsof their keyways 19 so that the shells are free to move laterally withrespect to the shaft 14; and at right angles to the lateral movementpermitted the drive collars 16. i

Located beneatheach shell section or sleeve 18 is a 'presser lever 21.fulcrumed at its rear the base 8. "The free ,end' of the lever ismounted on a'depending vertically movable plunger bolt 2 1 that passesthrough a supporting bar 25 and is 'yieldingly urged upwardly by aspring 26 having a bearing on the bar 25 and abutting a washer 27.ad]ust- .ablyfixed by n ts 28 to the upper end of the bolt 24. Theportion of the 'lever-21'that passes beneaththe shell section or sleeve18 carries a bracket 29 in which are journaled positioning andpresserrollers 30 that bear .against'the under portion of the sleeve orshel section 18 :on opposite sidesof the central vertical planeoftheaxis of the'shaft. It will be evident therefore thatfthe'se rollersserve to prevent any horizontal lateral play on the part of .the shellsections or sleeves 18, but will permit them 'to move vertically withrespect to the roller 12 and against the tension of'the' springs26. 1

Connecting tliehead plates 11 at the front side thereof, isasupportingbar 31 in which guide pins 32 are detachably and adjustablymounted for directing the strips to be drawn by the rolls, between saidrolls.

The rolls may be driven by any suitable 5 means. Thus there is shownmounted on the base 8, a main drive shaft 33 geared at one end of theapparatus, as shown at 34 to a countershaft 35. This countershaft inturn through suitable gearing 36 drives the upper main roll 12 and thelower sectional roll 13. With'this structure it will be evident that ifa thin strip is entered between portions of the rolls 12 and 13, thelever or levers 21' acting on theshells or sleeves'18, which are engagedby the strip, will press the strlp'firmly against the main 18 will turnfreely even though they are eccentric to the axis of the shaft 14;. Athicker strip may be located alongside the thin strip and so long as itis not engaged by the same shells or sleeves 18, it will not affect thedrawing action thereon, but will hold the sleeves 18, which it engages,farther awa from the main roll 12. Consequently it will be clear thatstrips of various gauges and various widths may be engaged and drawnbythe roll structure herein disclosed.

From the'foregoing, it is thought that the construction, operation andmany advantages of the herein described invention Wlll be 313-3. parentto those skilled in, the art without fur-- ther description, and it'willbe understood that various changes in the size, shape, promay beresorted to without departing from the spirit or sacrificing any of theadvantages of the invention.

What we claim, is:

40 nation with a mam bearing roll, of a coacting roll comprising ashaft, roll shellsections located end to end on the shaft, and laterallymovable with respect thereto, drive members interposed between theshells and shaft and having laterally movable interlocking connectionswith both that permit both their. lateral play and the lateral play ofthe shells, and means for urging the shells toward the main roll andpermitting their individual movements away from the same whilepreventing their side play toward opposite sides of the main roll.

2. In-a drawing. roll structure, the combiing roll comprising a shaft,roll shell secward the main roll and permitting their individualmovements away from the same, said means holding the shells against"lateral play roll 12, and the said shells ,4 roll comprising a shaft, aplurality of driving prevent their lateral portion and minor details ofconstruction,

1. Ina drawing roll structure, the combination with a main bearing roll,of a coactof drive members and of the.

in directions transverse to said individual motions forward and from themain roll.

3. In a drawing roll structure, the combination with a main bearingroll, of a coacting rollcomprising a-shaft, a plurality of drivingcollars located on the shaft and interlocked therewith'so as to havelateral play on the shaft, a plurality of roll shells surroundingthedrive collars and interlocked therewith so as to have lateral play withrespect to the shaft, the interlocking portions between the shells andcollars being out of line with the interlocking portions of the shaftand collars, and means bearing against thial shells for urging themtoward the main ro g 4'. In a drawing roll structure, the combinationwith a main bearing roll, of a coacting collars located on the shaft andinterlocke therewith so as to have lateral play on the shaft, aplurality of roll-shells surrounding the drive collars andinterlocked'therewith, so as to. have lateral play with respect to theshaft, the interlocked portions between the shells and collars being outof line with the interlocking portions of the shaft and collars,spring-pressed carrier arms at the side of the coacting roll opposite tothe main roll, and of the arms bearing against the respective shells atspaced points to urge the shells toward the main roll and displacementto either side of the same.

5.- In adrawing roll structure, the combination with a main bearingroll, of a. coacting roll comprising a shaft, a roll section,surrounding and located on the shaft, a drive member within the rollsection and interposed between it and the shaft, said drive memberhaving an interlocking drive connection with the shaft that effects itsrotation by the shaft and permits it to move laterally with respect tothe shaft and also having an interlocking drive connection with the rollsection to effect its rotation and permit its lateral play with respectto the drive member.

6. In a drawing roll structure, the combination with a main bearingroll, of a coacting roll comprising a shaft, a roll section surroundingand located on the shaft, a drive member within the roll section andinterposed between it and the shaft, a key and keywayconnection betweenthe drive member and shaft that secures their common rotation roundingand located on the shaft, a drive sleeve surrounding the shaft withinthe roll shell, a key and keyway connection between the drive sleeve andshaft that secures their tures.

HERBERT E. WHITE. WALTER SCHULZ.

